Impedance is a measure of opposition to the flow of electrical current in an electrical circuit. It is a combination of resistance, capacitance, and inductance. Impedance is an important concept in electrical engineering, as it affects the performance of electrical systems. It is used to determine the power output of a circuit, the voltage drop across a component, and the current flow through a component. Impedance is also used to calculate the power factor of a circuit, which is the ratio of the real power to the apparent power. The impedance market is composed of companies that manufacture and supply components and systems that measure and control impedance. These components and systems are used in a variety of applications, such as power distribution, telecommunications, and automotive. Companies in the impedance market include ABB, Siemens, Schneider Electric, and Eaton. Show Less Read more
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